Home / 899,995.20-1,349,992.80-402,331.20

Finding the Fourth Proportional to 899,995.20, 1,349,992.80 and 402,331.20

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Solution

The fourth proportional to 899,995.20, 1,349,992.80 and 402,331.20 is: 603,496.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,995.20 : 1,349,992.80 = 402,331.20 : x
  2. Step 2: Convert to fraction form
    899,995.20/1,349,992.80 = 402,331.20/x
  3. Step 3: Cross multiply
    899,995.20x = 1,349,992.80 × 402,331.20
  4. Step 4: Simplify right side
    899,995.20x = 543,144,223,215.36
  5. Step 5: Solve for x
    x = 543,144,223,215.36/899,995.20
  6. Step 6: Final answer
    x = 603,496.80

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.